基于Web Server的火车票查询页面优化

基于Web Server的火车票查询页面优化

      上一篇已经实现了火车票查询的功能,但是页面的可视化效果并不好,本章接着上篇实现的功能,对页面进行修饰和优化。优化的内容包括:①查询窗口的修饰  ②新增【重置】按钮,并添加JS代码  ③结果显示窗口新增单元行  ④结果窗口完善,增加滚动条

1、打开完成的小程序,源代码和效果如图所示。

 基于Web Server的火车票查询页面优化


基于Web Server的火车票查询页面优化 


添加【重置】按钮

<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="重置" />

添加【点击】事件

 基于Web Server的火车票查询页面优化

为文本框添加提示文字

 基于Web Server的火车票查询页面优化

 基于Web Server的火车票查询页面优化 

2、修饰GridView,添加标题栏(因为默认的返回值属性列是英文,看的不直观)。为GridView添加“RowCreated”事件

 基于Web Server的火车票查询页面优化

添加如下代码(基本信息和籍贯信息只是为了演示而添加):

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

    {

        switch (e.Row.RowType)

        {

            case DataControlRowType.Header:

 

                //总表头

                TableCellCollection tcHeader = e.Row.Cells;

                tcHeader.Clear();

 

                //第一行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[0].Attributes.Add("bgcolor", "#ff0000");

                tcHeader[0].Attributes.Add("colspan", "9");  //合并第一行的9

                tcHeader[0].Text = "列车时刻表</th></tr><tr>";

 

                //第二行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[1].Attributes.Add("bgcolor", "#00ff00");

                tcHeader[1].Attributes.Add("colspan", "4");

                tcHeader[1].Text = "基本信息";

 

                tcHeader.Add(new TableHeaderCell());

                tcHeader[2].Attributes.Add("bgcolor", "#00ff00");

                tcHeader[2].Attributes.Add("colspan", "5");

                tcHeader[2].Text = "籍贯信息</th></tr><tr>";

 

                //第三行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[3].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[3].Attributes.Add("width", "60");

                tcHeader[3].Text = "车次";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[4].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[4].Attributes.Add("width", "80");

                tcHeader[4].Text = "始发站";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[5].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[5].Attributes.Add("width", "80");

                tcHeader[5].Text = "终点站";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[6].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[6].Attributes.Add("width", "80");

                tcHeader[6].Text = "发车站";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[7].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[7].Attributes.Add("width", "80");

                tcHeader[7].Text = "发车时间";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[8].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[8].Attributes.Add("width", "80");

                tcHeader[8].Text = "到达站";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[9].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[9].Attributes.Add("width", "80");

                tcHeader[9].Text = "到达时间";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[10].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[10].Text = "里程";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[11].Attributes.Add("bgcolor", "#ffff00");

                tcHeader[11].Text = "历时</th></tr><tr>";        

                break;

        }

    }

 基于Web Server的火车票查询页面优化

3、GridView添加滚动条。先将GridView嵌入一个div标签中

 <div id="GridViewdiv">

         <asp:GridView ID="GridView1" runat="server" BackColor="#0099CC"

            BorderColor="#FFCCFF" ShowHeaderWhenEmpty="True" Height="300"

            onrowcreated="GridView1_RowCreated">

         </asp:GridView>

     </div>

 

再设置此div的样式

<div id="GridViewdiv" style="width: 670px;height: 300px; overflow: auto">

 基于Web Server的火车票查询页面优化

但此时发现滚动条滚动时标题栏也会跟随着一起动,所以就得想方法固定标题栏。我使用的是添加表格的方法,添加表格名和标题栏。代码如下

 基于Web Server的火车票查询页面优化

<div style="width:670px;">

            <table>

            <caption> 列车时刻表</caption>

            <thead>                   

                <tr>

                    <td>

                        车次

                    </td>

                    <td>

                        始发站

                    </td>

                    <td>

                        终点站

                    </td>

                    <td>

                        发车站

                    </td>

                    <td>

                        发车时间

                    </td>

                    <td>

                        到达站

                    </td>

                    <td>

                        到达时间

                    </td>

                    <td>

                        里程

                    </td>

                    <td>

                        历时

                    </td>               

                </tr>

             </thead>

            </table>

        </div>

 

并设置其样式

caption

{

    width:670px;

    background-color:Red;

}

td

{

    width:70px;

    text-align:center;

    background-color:Green;    

}

 基于Web Server的火车票查询页面优化

此时发现原表格的自带属性列还存在,所以使用上一步的方法, GridView1_RowCreated”事件中仅添加一行空行即可。改变列车查询结果的背景色为浅蓝色。

 基于Web Server的火车票查询页面优化

 

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

    {

        switch (e.Row.RowType)

        {

            case DataControlRowType.Header:

 

                //总表头

                TableCellCollection tcHeader = e.Row.Cells;

                tcHeader.Clear();

 

                //第一行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[0].Attributes.Add("bgcolor", "#000000");

                tcHeader[0].Attributes.Add("colspan", "9");  //合并第一行的9

                tcHeader[0].Text = "</th></tr><tr>";      

                break;

        }

    }

 基于Web Server的火车票查询页面优化

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